from my experience when I get that, one of the downloads didn't complete. check the file sizes and the culprit is easy to see. for example, all the files should be 100M except the last one. but one of them may be 2k in size... hope that's what your issue is
you can't go wrong with most courses by vic noble. basic good information. his current course recurring forex patterns or his coach's guide course are also very good. I no longer have them but would recommend them. like anything, it requires focus and practice